Real-Time Detection and Control Method of Feedback Oscillation between Antennas through Output Level Analysis in a Wireless Repeater 


Vol. 44,  No. 8, pp. 1520-1526, Aug.  2019
10.7840/kics.2019.44.8.1520


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  Abstract

In this paper, the repeater introduce and evaluate its sensing and control functions to protect the circuit from oscillation which is caused by inter-antenna interference, and maintain the signal quality without additional circuit. Detection of the oscillation is performed by analyzing the time change of downlink output power, and such a downlink output power detection circuit must be constituted by the peak detection method. When oscillation occur, in order to solve the oscillation condition, controlling attenuator to adjust the gain of the repeater is applied so that the intensity of the feedback signal compared to the original signal is sufficiently low.

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  Cite this article

[IEEE Style]

D. Park and J. Lee, "Real-Time Detection and Control Method of Feedback Oscillation between Antennas through Output Level Analysis in a Wireless Repeater," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 8, pp. 1520-1526, 2019. DOI: 10.7840/kics.2019.44.8.1520.

[ACM Style]

Duckyoung Park and Jaiyong Lee. 2019. Real-Time Detection and Control Method of Feedback Oscillation between Antennas through Output Level Analysis in a Wireless Repeater. The Journal of Korean Institute of Communications and Information Sciences, 44, 8, (2019), 1520-1526. DOI: 10.7840/kics.2019.44.8.1520.

[KICS Style]

Duckyoung Park and Jaiyong Lee, "Real-Time Detection and Control Method of Feedback Oscillation between Antennas through Output Level Analysis in a Wireless Repeater," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 8, pp. 1520-1526, 8. 2019. (https://doi.org/10.7840/kics.2019.44.8.1520)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880